OpenStack Rocky : Designate 設定#22018/09/04 |
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OpenStack DNS Service（Designate）をインストールします。
当例では以下のような環境を例に Designate をインストールします。
Network ノードに Designate サービス一式をインストールし、バックエンドの DNS サービスとして BIND 9 を設定します。 BIND 9 以外にも PowerDNS などもバックエンド DNS として利用可能です。
------------+---------------------------+---------------------------+------------
| | |
eth0|10.0.0.30 eth0|10.0.0.50 eth0|10.0.0.51
+-----------+-----------+ +-----------+-----------+ +-----------+-----------+
| [ Control Node ] | | [ Network Node ] | | [ Compute Node ] |
| | | | | |
| MariaDB RabbitMQ | | Open vSwitch | | Libvirt |
| Memcached httpd | | L2 Agent | | Nova Compute |
| Keystone Glance | | L3 Agent | | Open vSwitch |
| Nova API | | Metadata Agent | | L2 Agent |
| Neutron Server | | Cinder Volume | | |
| Metadata Agent | | Heat API API-CFN | | |
| Cinder API | | Heat Engine Named | | |
| | | Designate Services | | |
+-----------------------+ +-----------------------+ +-----------------------+
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| [1] | Designate サービス および BIND 9 をインストールします。 |
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[root@network ~]# yum --enablerepo=centos-openstack-rocky,epel -y install openstack-designate-api openstack-designate-central openstack-designate-worker openstack-designate-producer openstack-designate-mdns python-designateclient bind bind-utils
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| [2] | Designate から BIND が利用できるよう設定しておきます。 |
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[root@network ~]# rndc-confgen -a -k designate -c /etc/designate.key -r /dev/urandom wrote key file "/etc/designate.key" [root@network ~]# chown named:designate /etc/designate.key [root@network ~]# chmod 640 /etc/designate.key [root@network ~]# mv /etc/named.conf /etc/named.conf.org
[root@network ~]#
vi /etc/named.conf # 新規作成
options {
listen-on port 53 { any; };
listen-on-v6 port 53 { none; };
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
# クエリの許可範囲は自身の環境に合わせて置き換え
allow-query { localhost; 10.0.0.0/24; };
allow-new-zones yes;
request-ixfr no;
recursion no;
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
pid-file "/run/named/named.pid";
session-keyfile "/run/named/session.key";
};
include "/etc/designate.key";
controls {
inet 0.0.0.0 port 953
allow { localhost; } keys { "designate"; };
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
zone "." IN {
type hint;
file "named.ca";
};
chmod 640 /etc/named.conf [root@network ~]# chgrp named /etc/named.conf [root@network ~]# chown -R named. /var/named [root@network ~]# systemctl start named [root@network ~]# systemctl enable named |
| [3] | Designate の設定です。 |
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[root@network ~]# mv /etc/designate/designate.conf /etc/designate/designate.conf.org
[root@network ~]#
vi /etc/designate/designate.conf # 新規作成 [DEFAULT] log_dir = /var/log/designate # RabbitMQ 接続情報 transport_url = rabbit://openstack:password@10.0.0.30 root_helper = sudo designate-rootwrap /etc/designate/rootwrap.conf [database] # MariaDB 接続情報 connection = mysql+pymysql://designate:password@10.0.0.30/designate [service:api] listen = 0.0.0.0:9001 auth_strategy = keystone api_base_uri = http://10.0.0.50:9001 enable_api_v2 = True enabled_extensions_v2 = quotas, reports # Keystone 認証情報 [keystone_authtoken] www_authenticate_uri = http://10.0.0.30:5000 auth_url = http://10.0.0.30:5000 memcached_servers = 10.0.0.30:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = designate password = servicepassword [service:worker] enabled = True notify = True [storage:sqlalchemy] # MariaDB 接続情報 connection = mysql+pymysql://designate:password@10.0.0.30/designate chmod 640 /etc/designate/designate.conf [root@network ~]# chgrp designate /etc/designate/designate.conf [root@network ~]# su -s /bin/sh -c "designate-manage database sync" designate
[root@network ~]#
systemctl start designate-central designate-api [root@network ~]# systemctl enable designate-central designate-api
[root@network ~]#
vi /etc/designate/pools.yaml # 新規作成 (ホスト名や IPアドレスは自身の環境に合わせて置き換え)
- name: default
description: Default Pool
attributes: {}
ns_records:
- hostname: network.srv.world.
priority: 1
nameservers:
- host: 10.0.0.50
port: 53
targets:
- type: bind9
description: BIND9 Server
masters:
- host: 10.0.0.50
port: 5354
options:
host: 10.0.0.50
port: 53
rndc_host: 10.0.0.50
rndc_port: 953
rndc_key_file: /etc/designate.key
chmod 640 /etc/designate/pools.yaml [root@network ~]# chgrp designate /etc/designate/pools.yaml [root@network ~]# su -s /bin/sh -c "designate-manage pool update" designate Updating Pools Configuration [root@network ~]# systemctl start designate-worker designate-producer designate-mdns [root@network ~]# systemctl enable designate-worker designate-producer designate-mdns
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| [4] | SELinux を有効にしている場合は、ポリシーの変更が必要です。 |
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[root@network ~]# setsebool -P named_write_master_zones on |
| [5] | Firewalld を有効にしている場合は、サービスポートの許可が必要です。 |
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[root@network ~]# firewall-cmd --add-service=dns --permanent [root@network ~]# firewall-cmd --add-port={5354/tcp,9001/tcp} --permanent success [root@network ~]# firewall-cmd --reload success |
| [6] | Openstack に認証可能な任意のノードでステータスを確認します。全て [up] 状態であれば OK です。 |
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[root@dlp ~(keystone)]# openstack dns service list +--------------------------------------+-------------------+--------------+--------+-------+--------------+ | id | hostname | service_name | status | stats | capabilities | +--------------------------------------+-------------------+--------------+--------+-------+--------------+ | ded12d58-408e-4c91-bc62-237050fc44ec | network.srv.world | api | UP | - | - | | ed805afa-de1e-46f0-93a7-6117527dc51e | network.srv.world | central | UP | - | - | | 8012d120-03c5-4687-aae2-1a443eda614f | network.srv.world | producer | UP | - | - | | 9a6bc4e3-df28-40b6-bf23-5871f28484a8 | network.srv.world | worker | UP | - | - | | a59c4ba5-d38c-45ae-927f-3fc37d16cf20 | network.srv.world | mdns | UP | - | - | +--------------------------------------+-------------------+--------------+--------+-------+--------------+ |
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